Lbyi wilkinson



@uiten tatr gamut @fitta IMPROVED SGRW-GLAMP FOB. BENDING AXIS-TREES.

'sPmcIFqzcAItIoNz TO ALL WHOM IT MAY CONGERN: i

Be it known that I, LEVI WILKINs0N,`of the city and county of New Haven, and'Stateot` Connecticut, have invented a new and useful 'improvement in Screw-Clan1pn, or Apparatus for Setting or Adjusting Carriage Axle-Trees and I dohereby declare that the following is a full, clear, and exact description of the construcjtion, character, and operation of the same, reference being. had to theaccompanyingV drawings which make part of this specification, in'which t i 'Figure 1 is a perspective view of the vwhole apparatus as it will appear when in `use, or 'in the operation of bending or adjusting the axle-tree. 4 Figure is a perspective view of thewloop or movable part of i the'clamp, showing the general form. My improvement consists in the use of anjiniiexible bar, with one (the 'stationary)'end fitted to restzupon or against the axle-tree, and with a female screw'or thread cut or tapped in the other (or vibrating) end; and inthe use of a male screw, (towork in the female thread in the bar,) with a suitable support to rest on or against the axle-tree, and a suitable wrench or lever to turn itJ and an adjustable clamp or hook` to slide on the bar and hook on to or over the axle-tree at the joint or, place where I desire to bend the axleftree for the purpose of increasing or le'ssening the curve, soy as to ,cause the wheels to run true, or to trac in a proper manner, I

make the inexible bar, A, of iron, or any other'suitable material, substantially in the form or shape represented in l; that is, I make its greatest latter dimension in the direction of the strain,'and`one (the stationary) end fitted to rest upon or against the axle-tree, (a portion of one being representedrat 13,) as represented at a and in the other (the vibrating) end I cutor tap a, female screw, as indicated at b., to -receivethe male screw, c,

all as represented in fig. `1. I make the malev screw,te, of iron, or any other suitable material, with a proper head to receive a suitable wrench or lever, as represented at d, orlin any other convenient form, `to enable me.

to turn the screw, c, with suiiicient force; and on the/otherend'erV pointof the screw I t aproper block or bearing, 'e, to rest against the axle, all as` shown in g. 1. I make the clamp or hook, C, of iron, or any other suitable materialin thev form or shape shown in iigf2, or of Vany other convenient shape, so that it may be adjusted,` on the bar, A, ,and hooked on to the' axleftree, as seen in iig. 1, or otherwise'. Having made the parts and tted the screw', as before described, when I desire to adjust an axle-tree which'i-has been sprungtby over-loading, collision,` or otherwise, I slip therhook or clamp C on to the bar A, .and hook it on to the axle B, place the stationaryend a on or against the axle-tree, and rest the block or bearing e onor against the axle-tree nearthe collar g, adg'ust the clamp, of hook, C, to the required point or position on the axle-tree,-and turn the.` screw, c, until the axletree is bent to the proper degree to perfect the adjustment; all which-may, inmost cases, be done without removing either the wheels or the body from the axle-tree, and even -without 'detachng .the horses from the carriage. l

What I claim as my invention, and desire .to secure by Letters Patent, is`` The combination of the' bar (A,) and screw (6,) with the clamp, or hook (C, when the whole is constructed, arranged, and tted to produce the result, substantially as herein described and' set forth.` i "l i l LEVPWILKINSON.

Witnesses: WML F. News,

B.. Frrzennnngi 

